Hi,
both Precious Time (PT) and narikaa are EU based (no customs issues) and as far as i know reputable - i have used PT once and he was pretty responsive to emails and the watch took around 2 weeks to be delivered. (http://www.precioustime-uk.com/)
haven't used Reg ("Narikaa") but have asked him a couple of questions and he has always been quick to respond (he is currently away at the moment though) - check out their sections under "watch Collectors" on this forum
cheers
C